\begin{table}%t3
\caption{\label{tab3}Luminosities and dust masses derived from the spectral fitting to the observed SEDs.}
%\centering
\par
\begin{tabular}{cccc}
\hline\hline \noalign{\smallskip}
Region & $L_{\rm PAH}$ & $L_{\rm dust}$ & $M_{\rm dust}$ \\
 & $10^{9}$ $L_{\odot}$ & $10^{10}$ $L_{\odot}$ & $10^{6}$ $M_{\odot}$ \\
\hline
Center ($d\leq 2'$) & 6.0 & 3.1 & 2.3 \\
Center ($d\leq 4'$) & 6.4 & 5.6 & 7.6 \\
Total ($d\leq 8'$)  & 6.9 & 6.1 & 10.3 \\
Halo ($d\leq 4'$) & 0.0041 & 0.0057 & 3.9 \\
\hline
\end{tabular}
\end{table}